Elongate portable sign



FIG. 1 is a perspective view of an ornamental design for an elongate portable sign in accordance with the present disclosure;

FIG. 2 is a front elevation view of the elongate portable sign shown in FIG. 1;

FIG. 3 is a right side elevation view of the elongate portable sign shown in FIG. 1;

FIG. 4 is a left side elevation view of the elongate portable sign shown in FIG. 1;

FIG. 5 is a rear elevation view of the elongate portable sign shown in FIG. 1; and,

FIG. 6 is a top plan view of the elongate portable sign shown in FIG. 1.

The broken lines shown on FIGS. 1-6 show unclaimed detail only and form no part of the claimed design. 

The ornamental design for an elongate portable sign, as shown and described. 